1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="Content-Style-Type" content="text/css">
<title></title>
<meta name="Generator" content="Cocoa HTML Writer">
<meta name="CocoaVersion" content="1038.35">
<style type="text/css">
p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica}
p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; min-height: 14.0px}
p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; min-height: 12.0px}
p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; color: #cd1713}
p.p5 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco}
span.s1 {font: 18.0px Helvetica}
span.s2 {color: #102ac3}
span.Apple-tab-span {white-space:pre}
</style>
</head>
<body>
<p class="p1"><span class="s1"><b>Sieve1<span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></b></span><b>Fuzzy sieve based synthesis</b></p>
<p class="p2"><br></p>
<p class="p1"><b>Sieve1.ar(bufnum,gap, mul, add )</b></p>
<p class="p2"><br></p>
<p class="p1">Implementation of Xenakis's idea of sieve based synthesis, generalized to use fuzzy (probabilistic) sieves. Sieves are stored in buffers and can be dynamically swapped.<span class="Apple-converted-space"> </span></p>
<p class="p2"><br></p>
<p class="p2"><br></p>
<p class="p1">Ariza, Chris 2009 “Sonifying Sieves: Synthesis and Signal Processing Applications of the Xenakis Sieve with Python and Csound.” In Proceedings of the International Computer Music Conference. San Francisco: International Computer Music Association.</p>
<p class="p2"><br></p>
<p class="p3"><br></p>
<p class="p4">//MUST be a buffer with data in format [sizeofcurrentsieve,sieveentry1,sieveentry2,...] where currentsize always less than initially allocated buffer length -1.<span class="Apple-converted-space"> </span></p>
<p class="p3"><br></p>
<p class="p5">{ <span class="s2">Sieve1</span>.ar(<span class="s2">LocalBuf</span>.newFrom([10]++({0.75.rand}!10)),<span class="s2">MouseX</span>.kr(2,100))*0.2}.play</p>
<p class="p3"><br></p>
<p class="p5">{ <span class="s2">Sieve1</span>.ar(<span class="s2">LocalBuf</span>.newFrom([88]++({[0.1.rand,0.5.rand].wchoose([0.8,0.2])}!88)),<span class="s2">MouseX</span>.kr(1,100))*0.2}.play</p>
<p class="p3"><br></p>
<p class="p5">b = <span class="s2">Buffer</span>.alloc(s,300);<span class="Apple-converted-space"> </span></p>
<p class="p3"><br></p>
<p class="p5">b.setn(0, [88]++({[0.1.rand,0.5.rand].wchoose([0.8,0.2])}!88))</p>
<p class="p3"><br></p>
<p class="p5">{ <span class="s2">Sieve1</span>.ar(b,<span class="s2">MouseX</span>.kr(2,100),0)*0.2}.play</p>
<p class="p3"><br></p>
<p class="p4">//dynamically swap buffer</p>
<p class="p5">b.setn(0, [8]++(1.0!8))</p>
<p class="p3"><br></p>
<p class="p5">b.setn(0, [8]++({rrand(0.1,1.0)}!8))</p>
<p class="p3"><br></p>
<p class="p5">b.setn(0, [18]++({[0.0,1.0].choose}!18))</p>
<p class="p3"><br></p>
<p class="p5">b.setn(0, [188]++({[0.0,rrand(0.96,1.0)].wchoose([0.3,0.7])}!188))</p>
<p class="p3"><br></p>
</body>
</html>
|
